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Finding the Fourth Proportional to 227,090.86, 313,385.70 and 123,724.54

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Solution

The fourth proportional to 227,090.86, 313,385.70 and 123,724.54 is: 170,740.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,090.86 : 313,385.70 = 123,724.54 : x
  2. Step 2: Convert to fraction form
    227,090.86/313,385.70 = 123,724.54/x
  3. Step 3: Cross multiply
    227,090.86x = 313,385.70 × 123,724.54
  4. Step 4: Simplify right side
    227,090.86x = 38,773,501,575.08
  5. Step 5: Solve for x
    x = 38,773,501,575.08/227,090.86
  6. Step 6: Final answer
    x = 170,740.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.